USA Today - 9 Sep 06

Florida County Plans to Vaporize Landfill Trash

September 9, 2006

St. Lucie County Solid Waste Directory Leo Cordeiro, left,
and Assistant Director Ron Roberts pose at the St. Lucie
County landfill in Fort Pierce, Fla. Atlanta-based
Geoplasma plans to build a plant that will use garbage
to power homes and production lines.

FORT PIERCE, Fla. (AP)  A Florida county has
grand plans to ditch its dump, generate electricity and help build roads
- all by vaporizing garbage at temperatures hotter than the sun.

The $425 million facility expected to be built in St.
Lucie County will use lightning-like plasma arcs to turn trash into gas
and rock-like material. It will be the first such plant in the nation
operating on such a massive scale and the largest in the world.

Supporters say the process is cleaner than
traditional trash incineration, though skeptics question whether the
technology can meet the lofty expectations.

The 100,000-square-foot plant, slated to be
operational in two years, is expected to vaporize 3,000 tons of garbage
a day. County officials estimate their entire landfill - 4.3 million
tons of trash collected since 1978 - will be gone in 18 years.

No byproduct will go unused, according to Geoplasma,
the Atlanta-based company building and paying for the plant.

Synthetic, combustible gas produced in the process
will be used to run turbines to create about 120 megawatts of
electricity that will be sold back to the grid. The facility will
operate on about a third of the power it generates, free from outside
electricity.

About 80,000 pounds of steam per day will be sold to
a neighboring Tropicana Products Inc. facility to power the juice
plant's turbines.

Sludge from the county's wastewater treatment plant
will be vaporized, and a material created from melted organic matter -
up to 600 tons a day - will be hardened into slag, and sold for use in
road and construction projects.

"This is sustainability in its truest and finest
form," said Hilburn Hillestad, president of Geoplasma, a subsidiary of
Jacoby Development Inc.

For years, some waste-management facilities have been
converting methane - created by rotting trash in landfills - to power.
Others also burn trash to produce electricity.

But experts say population growth will limit space
available for future landfills.

"We've only got the size of the planet," said Richard
Tedder, program administrator for the Florida Department of
Environmental Protection's solid waste division. "Because of all of the
pressures of development, people don't want landfills. It's going to be
harder and harder to site new landfills, and it's going to be harder for
existing landfills to continue to expand."

The plasma-arc gasification facility in St. Lucie
County, on central Florida's Atlantic Coast, aims to solve that problem
by eliminating the need for a landfill. Only two similar facilities are
operating in the world - both in Japan - but are gasifying garbage on a
much smaller scale.

Up to eight plasma arc-equipped cupolas will vaporize
trash year-round, non-stop. Garbage will be brought in on conveyor belts
and dumped into the cylindrical cupolas where it falls into a zone of
heat more than 10,000 degrees Fahrenheit.

"We didn't want to do it like everybody else," said
Leo Cordeiro, the county's solid waste director. "We knew there were
better ways."

No emissions are released during the closed-loop
gasification, Geoplasma says. The only emissions will come from the
synthetic gas-powered turbines that create electricity. Even that will
be cleaner than burning coal or natural gas, experts say.

Few other toxins will be generated, if any at all,
Geoplasma says.

But critics disagree.

"We've found projects similar to this being
misrepresented all over the country," said Monica Wilson of the Global
Alliance for Incinerator Alternatives.

Wilson said there aren't enough studies yet to prove
the company's claims that emissions will likely be less than from a
standard natural-gas power plant.

She also said other companies have tried to produce
such results and failed. She cited two similar facilities run by
different companies in Australia and Germany that closed after failing
to meet emissions standards.

"I think this is the time for the residents of this
county to start asking some tough questions," Wilson said.

Bruce Parker, president and CEO of the Washington,
D.C.-based National Solid Wastes Management Association, scoffs at the
notion that plasma technology will eliminate the need for landfills.

"We do know that plasma arc is a legitimate
technology, but let's see first how this thing works for St. Lucie
County," Parker said. "It's too soon for people to make wild claims that
we won't need landfills."

Louis Circeo, director of Georgia Tech's plasma
research division, said that as energy prices soar and landfill fees
increase, plasma-arc technology will become more affordable.

"Municipal solid waste is perhaps the largest
renewable energy resource that is available to us," Circeo said, adding
that the process "could not only solve the garbage and landfill problems
in the United States and elsewhere, but it could significantly alleviate
the current energy crisis."

He said that if large plasma facilities were put to
use nationwide to vaporize trash, they could theoretically generate
electricity equivalent to about 25 nuclear power plants.

Americans generated 236 million tons of garbage in
2003, about 4.5 pounds per person, per day, according to the latest
figures from the Environmental Protection Agency. Roughly 130 million
tons went to landfills - enough to cover a football field 703 miles high
with garbage.

Circeo said criticism of the technology is based on a
lack of understanding.

"We are going to put emissions out, but the emissions
are much lower than virtually any other process, especially a combustion
process in an incinerator," he said.

Circeo said that both plants operating in Japan,
where emissions standards are more stringent than in the U.S., are
producing far less pollution than regulations require.

"For the amount of energy produced, you get
significantly less of certain pollutants like sulfur dioxide and
particulate matter," said Rick Brandes, chief of the Environmental
Protection Agency's waste minimization division.

Geoplasma expects to recoup its $425 million
investment, funded by bonds, within 20 years through the sale of
electricity and slag.

"That's the silver lining," said Hillestad, adding
that St. Lucie County won't pay a dime. The company has assumed full
responsibility for interest on the bonds.

County Commissioner Chris Craft said the plasma
process "is bigger than just the disposal of waste for St. Lucie
County."

"It addresses two of the world's largest problems -
how to deal with solid waste and the energy needs of our communities,"
Craft said. "This is the end of the rainbow. It will change the
world."